Finding the Fourth Proportional to 5,153,811.37, 7,112,272.44 and 2,861,971.99
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Solution
The fourth proportional to 5,153,811.37, 7,112,272.44 and 2,861,971.99 is: 3,949,528.43
Step by Step Solution
- Step 1: Write the proportion equation
5,153,811.37 : 7,112,272.44 = 2,861,971.99 : x - Step 2: Convert to fraction form
5,153,811.37/7,112,272.44 = 2,861,971.99/x - Step 3: Cross multiply
5,153,811.37x = 7,112,272.44 × 2,861,971.99 - Step 4: Simplify right side
5,153,811.37x = 20,355,124,508,528.96 - Step 5: Solve for x
x = 20,355,124,508,528.96/5,153,811.37 - Step 6: Final answer
x = 3,949,528.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.